Toothbrush



FIG. 1 is a top perspective view of a toothbrush of my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a right side elevation view thereof, the left side elevation being substantial a mirror image of the right side elevation as shown herein in FIG. 4;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for a toothbrush, as shown and described. 